摘要
本文主要根据IEC1984年12E文件提出的数字无线电系统抗衰落特性实验室测量方法,提出了一种新的实现方法.它利用一种具有多抽头的延迟线就可取代一般衰落模拟器中技术难度较高的无限移相器及其构成部件.
This paper suggests a simulative method for measuring the anti-fading characteristics of digital radio relay systems in the laboratory according to the document of IEC 1984 12E. The new model uses a kind of multi-tap delay-line to replace the endless phaser and its assembly parts which need higher technical requirements. This IF fading simulator is made in our laboratory.
出处
《南京邮电学院学报》
北大核心
1990年第4期28-33,共6页
Journal of Nanjing University of Posts and Telecommunications(Natural Science)
关键词
中频
衰落
模拟器
无线电
中继系统
Digital microwave relay systems
Fading
Simulators
